Identify the elements \( \mathrm{X} \) and \( \mathrm{Y} \) using the ionisation energy values g...
Identify the elements \( \mathrm{X} \) and \( \mathrm{Y} \) using the ionisation energy values given below:
\begin{tabular}{|l|l|l|}
\hline \multicolumn{3}{|c|}{ Ionization energy (in kJ/mol) } \\
\hline & 1st & 2nd \\
\hline\( X \) & 495 & 4563 \\
\hline\( Y \) & 731 & 1450 \\
\hline
\end{tabular}
(a) \( \mathrm{X}=\mathrm{Na} ; \mathrm{Y}=\mathrm{Mg} \)
(b) \( \mathrm{X}=\mathrm{Mg} ; \mathrm{Y}=\mathrm{F} \)
(c) \( \mathrm{X}=\mathrm{Mg} ; \mathrm{Y}=\mathrm{Na} \)
(d) \( \mathrm{X}=\mathrm{F} ; \mathrm{Y}=\mathrm{Mg} \)
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